20440223321 has 8 divisors (see below), whose sum is σ = 23363968320. Its totient is φ = 17517406608.

The previous prime is 20440223311. The next prime is 20440223327. The reversal of 20440223321 is 12332204402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20440223321 - 2¹⁴ = 20440206937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20440223327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184226 + ... + 273531.

It is an arithmetic number, because the mean of its divisors is an integer number (2920496040).

Almost surely, 2^20440223321 is an apocalyptic number.

It is an amenable number.

20440223321 is a deficient number, since it is larger than the sum of its proper divisors (2923744999).

20440223321 is an equidigital number, since it uses as much as digits as its factorization.

20440223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464143.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20440223321 its reverse (12332204402), we get a palindrome (32772427723).

The spelling of 20440223321 in words is "twenty billion, four hundred forty million, two hundred twenty-three thousand, three hundred twenty-one".